Quarterly report pursuant to Section 13 or 15(d)

Property Portfolio (Gross Investment) (Details)

v3.8.0.1
Property Portfolio (Gross Investment) (Details)
 9 Months Ended
Sep. 30, 2017
USD ($)
Property, Plant and Equipment [Line Items]  
Beginning Balance $ 206,876,727
Acquisitions 215,401,137 [1]
Ending Balance 422,277,864
Cape Coral Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 7,369,860
Lewisburg facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 7,300,000
Las Cruces Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 5,015,406
Prescott Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 4,612,054
Clermont Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 5,434,628
Sandusky Facility Acquisition One [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 4,406,811
Great Bend Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 24,637,687
Oklahoma City Facilities [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 49,500,000
Sandusky Facility Acquisition Two [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 1,075,839
Brockport Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 9,084,505
Flower Mound Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 4,291,543
Sherman facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 26,611,821
Sandusky Facility Acquisition Three [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 1,270,733
Lubbock Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 8,200,000
Germantown Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 15,940,250
Austin Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 40,650,000
Land [Member]  
Property, Plant and Equipment [Line Items]  
Beginning Balance 17,785,001
Acquisitions 19,054,126 [1]
Ending Balance 36,839,127
Land [Member] | Cape Coral Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 353,349
Land [Member] | Lewisburg facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 471,184
Land [Member] | Las Cruces Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 397,148
Land [Member] | Prescott Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 790,637
Land [Member] | Clermont Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 0
Land [Member] | Sandusky Facility Acquisition One [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 409,204
Land [Member] | Great Bend Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 836,929
Land [Member] | Oklahoma City Facilities [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 2,086,885
Land [Member] | Sandusky Facility Acquisition Two [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 97,804
Land [Member] | Brockport Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 412,838
Land [Member] | Flower Mound Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 580,763
Land [Member] | Sherman facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 1,600,711
Land [Member] | Sandusky Facility Acquisition Three [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 55,734
Land [Member] | Lubbock Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 1,302,651
Land [Member] | Germantown Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 2,700,468
Land [Member] | Austin Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 6,957,821
Building [Member]  
Property, Plant and Equipment [Line Items]  
Beginning Balance 179,253,398
Acquisitions 169,788,082 [1]
Ending Balance 349,041,480
Building [Member] | Cape Coral Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 7,016,511
Building [Member] | Lewisburg facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 5,819,137
Building [Member] | Las Cruces Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 4,618,258
Building [Member] | Prescott Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 3,821,417
Building [Member] | Clermont Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 4,361,028
Building [Member] | Sandusky Facility Acquisition One [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 3,997,607
Building [Member] | Great Bend Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 23,800,758
Building [Member] | Oklahoma City Facilities [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 37,713,709
Building [Member] | Sandusky Facility Acquisition Two [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 978,035
Building [Member] | Brockport Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 6,885,477
Building [Member] | Flower Mound Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 2,922,164
Building [Member] | Sherman facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 25,011,110
Building [Member] | Sandusky Facility Acquisition Three [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 1,214,999
Building [Member] | Lubbock Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 5,041,964
Building [Member] | Germantown Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 8,078,246
Building [Member] | Austin Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 28,507,662
Building And Tenant Improvements [Member]  
Property, Plant and Equipment [Line Items]  
Beginning Balance 2,651,287
Acquisitions 6,437,338 [1]
Ending Balance 9,088,625
Building And Tenant Improvements [Member] | Cape Coral Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 0
Building And Tenant Improvements [Member] | Lewisburg facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 504,726
Building And Tenant Improvements [Member] | Las Cruces Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 0
Building And Tenant Improvements [Member] | Prescott Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 0
Building And Tenant Improvements [Member] | Clermont Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 205,922
Building And Tenant Improvements [Member] | Sandusky Facility Acquisition One [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 0
Building And Tenant Improvements [Member] | Great Bend Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 0
Building And Tenant Improvements [Member] | Oklahoma City Facilities [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 1,876,730
Building And Tenant Improvements [Member] | Sandusky Facility Acquisition Two [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 0
Building And Tenant Improvements [Member] | Brockport Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 491,427
Building And Tenant Improvements [Member] | Flower Mound Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 381,859
Building And Tenant Improvements [Member] | Sherman facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 0
Building And Tenant Improvements [Member] | Sandusky Facility Acquisition Three [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 0
Building And Tenant Improvements [Member] | Lubbock Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 947,227
Building And Tenant Improvements [Member] | Germantown Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 656,111
Building And Tenant Improvements [Member] | Austin Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 1,373,336
Intangibles [Member]  
Property, Plant and Equipment [Line Items]  
Beginning Balance 7,187,041
Acquisitions 20,121,591 [1]
Ending Balance 27,308,632
Intangibles [Member] | Cape Coral Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 0
Intangibles [Member] | Lewisburg facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 504,953
Intangibles [Member] | Las Cruces Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 0
Intangibles [Member] | Prescott Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 0
Intangibles [Member] | Clermont Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 867,678
Intangibles [Member] | Sandusky Facility Acquisition One [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 0
Intangibles [Member] | Great Bend Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 0
Intangibles [Member] | Oklahoma City Facilities [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 7,822,676
Intangibles [Member] | Sandusky Facility Acquisition Two [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 0
Intangibles [Member] | Brockport Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 1,294,763
Intangibles [Member] | Flower Mound Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 406,757
Intangibles [Member] | Sherman facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 0
Intangibles [Member] | Sandusky Facility Acquisition Three [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 0
Intangibles [Member] | Lubbock Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 908,158
Intangibles [Member] | Germantown Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions 4,505,425
Intangibles [Member] | Austin Facility [Member]  
Property, Plant and Equipment [Line Items]  
Acquisitions $ 3,811,181
[1] The Lubbock facility acquisition included approximately $1,000,000 of OP Units issued as part of the total consideration. Additionally, an aggregate of $865,676 of intangible liabilities were acquired from the acquisitions that occurred during the nine months ended September 30, 2017, resulting in total gross investments funded using cash of $213,535,461.